1. Yenziwe ngezinto ze-PVC ezinobungani nemvelo, ilingisa imisipha yomoya kanye nesakhiwo sengqimba ye-mucosal ye-trachea, enezendlalelo ezinombala ocacile (ukuthungwa okubushelelezi kwe-trachea evamile, ukuvuvukala kanye nemininingwane ye-mucus ye-asthmatic trachea), ihlala isikhathi eside futhi ayinaphunga, ifanele ukuboniswa isikhathi eside kokufundisa.
2. Kufaka phakathi amamodeli amabili afanayo e-trachea evamile kanye ne-asthmatic pathological trachea, kanye nebhodi lokubonisa elichazayo elibonisa ngokucacile umehluko wokwakheka kwemisipha yomoya kanye nezendlalelo ze-mucosal. Isakhiwo sizinzile futhi ukuboniswa okuqhathanisayo kuyaqondakala.
3. Uchungechunge lokuphakelwa oluvuthiwe, isitokwe esanele, ukusekela ukuthengwa kwempahla ngobuningi, ukulethwa okusheshayo ngemva koku-oda, ukuqinisekisa inqubekela phambili yokufundisa nocwaningo.
4. Imodeli kanye nebhodi lokubonisa kulula ukulifaka, lilungele incazelo yokufundisa ngokuphuma ebhokisini, akukho ukuhlanganiswa okuyinkimbinkimbi
iyadingeka, isetshenziswa kalula ngabasebenzi bezokwelapha, othisha, kanye nabafundi.